аудио-видео разъем

3.5 mm, 2.5 mm or 6.25 mm TRS audio plug - распиновка

A TRS connector (tip, ring, sleeve) also called an audio jack, phone jack, phone plug, jack plug, stereo plug, mini-jack, mini-stereo, or headphone jack, is a common analog audio connector. It is cylindrical in shape, typically with three contacts, although sometimes with two (a TS connector) or four (a TRRS connector).

It was invented for use in telephone switchboards in the 20th century and is still widely used, both in its original ¼″ (exactly 6.35 mm) size and in miniaturized versions: 3.5 mm (approx. 1/8″) and 2.5 mm (approx. 3/32″). The connector's name is derived from the names of three conducting parts of the plug: Tip, Ring, and Sleeve.

TRS connector typical pinout for audio plug

Name

Position

Number

Most common Colour

L (Left Signal)

Tip

1

Green

R (Right Signal)

Ring

2

Red

GND (Ground)

Sleeve

3

Bare Copper

Some common uses of jack plugs and their matching sockets are:

Headphone and earphone jacks on a wide range of equipment. 1/4″ plugs are common on home and professional component equipment, while 3.5 mm plugs are nearly universal for portable audio equipment. 2.5 mm plugs are not as common, but are used on communication equipment such as cordless phones, mobile phones, and two-way radios.

Some miniaturized electronic devices use 2.5 mm or 3.5 mm jack plugs as serial port connectors for data transfer and unit programming. The second-generation iPod Shuffle from Apple has a single TRS jack which serves as headphone, USB, or power supply, depending on the connected plug.

Color codes of computer soundcard audio jacks

These codes were standardized by Microsoft and Intel in 1999 for computers as part of the PC99 standard.